7.4 uses a completely new regex engine, so comparisons
with that will not be valid anyway.
Pre-7.4 regex behaviour is all documented:
Users Guide -> Functions & Operators -> Pattern
Matching
--- "scott.marlowe" <scott.marlowe@ihs.com> wrote:
> On 24 Oct 2003, Manuel Sugawara wrote:
>
> > Matias Surdi <matiass@interlap.com.ar> writes:
> >
> > > Manuel Sugawara wrote:
> > > >Use something like '^[a-z]{2}$'
> > >
> > > so, is this a bug????
> >
> > No it is not. The sintax you are using is not
> supported.
>
> It certainly seems to work in Postgresql 7.4 beta 4:
>
> create table test2 (info text);
> CREATE TABLE
> insert into test2 values ('ab');
> INSERT 109169538 1
> insert into test2 values ('abc');
> INSERT 109169539 1
>
> marl8412=# select * from test2 where info ~
> '^[a-z]{2}$';
> info
> ------
> ab
>
> Or was there more to that message I wasn't getting?
>
>
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